Cement-applying machine.



L. MUTHER.

CEMENT APPLYING MACHINE.

APPLICATION 111.50 JUNE 2. 1911.

1, 182,709. Patented May 9, 1916.

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L. MUTHER.

CEMENT APPLYING MACHINE.

APPLICATION FILED JUNE 2.1911.

1,182,709. atented May 9, 1916.

2 SHEETS-SHEET 2.

LORENZ M'UTHER, OF WEST NEWTON, MASSACHUSETTS.

CEMENT-APPLYING- MACHINE.

Specification of Letters Patent.

Patented May 9, 1916.

Application filed June 2, 1911. Serial No. 630,878.

To all whom it may concern Be it known that I, LORENZ MUTHER, a citizen of the United States. residing in est Newton, county of Middlesex, Commonwealth of Massachusetts, have invented certain new and useful Improvements in Cement-Applying Machines, of which the following is a specification, reference being had to the drawings accompanying the same and forming a part thereof.

My invention relates to cement-applying machines of the kind adapted to apply viscous cement to the fabrics used principally in the manufacture of shoes and kindred articles.

The objects of my invention are to produce a cementing machine that will apply a band of cement of a predetermined width to the surfaces of a fabric and to spread the cement on the surfaces of the fabric to a uniform thickness.

Another object is to provide means that will thoroughly work the cement into the grain of the fabric.

In the drawings forming a part of this specification-Figure 1 is a front elevation of a cementing machine embodying my invention, having a part of its frame and the cement-cup broken away; Fig. 2 is a side elevation of same taken on line 22, Fig. 1, and having a part of the frame and the cement-cup broken away.

My invention is shown as applied to a Duplex cementer of the kind shown and described in the application for Letters Patent of the United States filed by William F. Lautenschlager on the seventh day of May, 1910, Serial No. 560,013.

In the drawings illustrating my invention, 1 represents the frame of the machine, and 2 the driving shaft which has one of its bearings in the portion 3 of the frame 1. The outer bearing is not shown. The shaft 2 drives the shaft 4 through the medium of the spur gears 5 and 6 which are secured to the shafts 2 and 4 respectively. By thisv method the shafts 2 and 4 are driven in opposite directions. The shafts 2 and 4 have gear teeth out in their peripheries, the teeth 19 in the shaft 2 being shown in Fig. 2 of the, drawing; the gear teeth in the shaft 4 being covered by the bearing 7. The feed disks 8 and 9 are secured to the ends'of the shafts 2 and 4 respectively. These feed disks 8 and 9 have knurled edges and serve the purpose of drawing the fabric through between them or feeding it between the brushes which are designated as 10 and 11. The larger portion of the brush 11 is covered up by a shield which will be described hereafter. Both brushes 10 and 11 are mounted on the shafts 2 and 4 in substantially the same manner and are driven or rotated in a similar manner, so that a description of the means for rotating the brush 10 will apply equally to the means for rotating the brush 11.

Referring to the means for rotating the brush 10, which consists of mounting the shell 12 of the brush 10 upon the sleeve 13 which has gear teeth 14 out upon one of its ends, the gear teeth 14 are arranged to enmesh with the gear 15. The gear 15 is mounted on a shaft 16 which has gear teeth 17 cut on its inner end. The gear teeth 17 are arranged to enmesh with the spur gear 18, which in turn enmeshes with the gear teeth 19 cut in the periphery of the shaft 2. The purpose of this arrangement of gears is to cause the brush 10 to revolve in a direction opposite to the rotative movement of the feed disk 8 and in an opposite direction to the feeding direction of the fabric to be cemented, with the result that as the fabric 20 is fed through the machine between the feed disks and brushes, the bristles of the brushes 10 and 11 will wipe over the faces of the fabric in a direction opposite to the movement of said fabric.

Referring to Fig. 1, it will be noted that the shaft and the feed disk rotate in the direction of the arrow. This causes the intermediate gear 18 to rotate in a direction opposite to that of the shaft 2', and the gear 17 to rotate in the same direction as the shaft 2 and the feed disk 8 and to drive the brush 10 in an opposite direction to the rotative movement of the gear 15 by the enmeshing of the gear 15 with the gear 1.4 upon which the brush is mounted, with the result that the brush 10 is rotated in a di rection opposite the rotative movement of the feed disk 8.

Referring again to Fig. 1, it will be evident that the shaft 4 and the brush 11 will rotate in opposite directions for the reason that the shaft 4 has the teeth 21 cut in its periphery which enmesh with the gear 22, which in turn enmeshes with the gear 23, driving the gear 24, which, in turn enmeshes with the gear 25 upon the shell of which is mounted the brush 11.

As has been shown in the above description, the feed disks 8 and 9 revolve 1n d1- rections oppositeto the rotative movement of the brushes 1.0 and 11, and in order that the bristles of the brush and 11 may have a firm wiping movement over the fabric to be cemented they must be slightly longer, or in other words, the diameter of the brushes must be larger than the diameter of the feed disks; hence, in trying to insert a piece of fabric between the brushes the bristles would touch the fabric before it came in contact with the feed disks so that the tendency would be to prevent a fabric from entering between the brushes.

In order to permit the fabric being inserted between the brushes a sufiicient distance to enable the feed disks 8 and 9 to get a grip upon it and draw it in, it is necessary to provide a guard or shield for the brushes so that the fabric may be pushed in to a point where the feed disks will grip it; hence I provide the shields 26 and 27 made of thin sheet steel with the ends curved to a circle to reach inwardly "between the brushes 10 and 11, as indicated in Fig. 1. Although :these shields 26 and 27 are shown quite thick for the purpose of illustration, they are in fact made of very thin tempered steel so as to be flexible, their convex sides at the points lying together and extending inwardly between the brushes. These shields serve the purpose of covering the feed disks'8 and 9 so that the fingers of the operator cannot come in contact with their knurled portions and be drawn in between said feed disks, the ends being narrow as shown in Fig. 2 to enable them to extend inwardly between the brushes.

In practice, when the material'2O is shoved inwardly between the feed disks 8 and 9 it shoves the ends of the shields 26 and 27 inwardly and partially between the brushes, thus preventing the brushes fromcon'tacting with the fabric until said fabric has reached a point where the peripheries of the feed disks 8 and 9 will contact with it and-draw it in. The shields 26 and'27 being made of thin sheet steel with a polished surface the bristles of the brush when covered with fresh cement easily slide over its surface so that it takes a very slight pressure upon the fabric to push the ends of said shields inwardly so as to permit contact of the feed disks with the fabric. 80 soon as the feeding disks 8 and 9 have gripped the fabric to feed it through them, the brushes acting on the surface of the shields26 and 27 push them outwardly suflicient'to enable the bristles-of the brushes 10 and 11 to contact with the fabric and spread cement upon its surface, and as said brushes 10 and 11 rotate in a direction opposite to 'the feeding direction of the fabric 20 they have an action upon the surface of the fabric more nearly approaching the action of a brush operated by hand, and in practice it is found that they will more easily and thoroughly spread the cement upon the fabric than they would if they rotated at a faster speed than the feed speed of the fabric, but in the same direction of its movement. The shields 26 and 2.7 are secured to the blocks 29 and 30, which blocks 29 and are pivoted to the frame of the machine by the screw-s 31 and 32.

The screws 31 and 32, as will be noted, are located at a position to the left of a line drawn through the axis of the shafts 2 and at, the purpose of which is to cause said shields 26 and 27 to move away from the periphery of the brushes 10 and 11 at all points, except the curved points of said shields where they enter between the brushes 10 and 11. It will be seenthat any rotative movement of-the blocks 29 and 30 upon the pivots 31 and 32 has this effect. The cement is applied to each of the brushes through the medium of rotating cylinders 33 and 34 mounted upon the shafts 36 and 37 and driven by the gears 38 and 39 which 'enmesh with the gears 25 and 15 respectively.

In practice, there is a tendency for the cement to work off to the sideof the bristles of the brush, onto the shells i0 and 11, in which the bristles are mounted. To provide against this tendency, I secure to the frame, scrapers 12 and 43, the ends of which appear in full lines in Fig. 1 and the remaining portions of said scrapers in dotted lines, and which are secured to the frameof 1311611'1210111118 by screws 14 and in such :manner that the sides shown in dotted lines scrape upon the angular surface of the shells +10 and 41 and throw the surplus cement out under the cement-Spreaders 42 and 43, which serve to spread the cement upon the periphery of the brushes. The cement-spreaders t2 and 43 also serve the purpose of spreading the cement evenly on the .periphery of the brushes so that the brushes will in turn spread it evenly upon the fabric as it is fed between the brushes.

My invention relates particularly'to means for rotating the brushes in an opposite direction to the rotative-movement of the feeding disks 8 and 9; to the guards 26 and 27 which are arranged to permit the easy in sertion of "the fabrics between the feeding disks 8 and9 and to the means for catching the surplus cement and drawing it to the periphery of the brushes, as well as for evenly spreading the cement upon the :periphery of the brushes, although I do not confine -myself-to the exact form or arrange- :ment of the parts as shown in-the drawings.

That I claim is 1. In a duplexcement-applying machine, the combination of a pluralityof shafts arranged approximately parallel to each other and to rotate in opposite directions; feeding disks mounted upon the ends of said shafts and arranged to rotate therewith; cementapplying means mounted to rotate on the z ends of said shafts, contiguous to said feedmovement of the feeding disks.

2. In a duplex cement-applying machine, the combination of a plurality of shafts; means for rotating said shafts in opposite directions; feeding disks mounted on the J ends of said shafts for feeding the stock;

cement-applying brushes rotatively mounted on the ends of said shafts and contiguous to the sides of the stock-feeding disks; means for rotating said cement-applying brushes in a direction opposite to the rotative movement of the stock-feeding disks; means for supplying cement to said cementapplying brushes; and guards for the pe- Gopies of this patent may be obtained for five cent ripheries of said stock-feeding disks and said cement-applying brushes, arranged so their free ends will contact and enter between the surface of said cement-applying brushes.

3. In a duplex cement applying machine, the combination of rotating stock-feeding disks for feeding the stock; rotating cement applying brushes for applying cement to the surface of the stock, in a rotatable direction opposite to that of the stock feeding disks, means for supplying cement to the surfaces of said cement applying brushes; a plurality of flexible guards serving to partially cover the periphery of the brushes so that they will not contact with the material until the fee-ding disks have gripped the material to feed it; and spreaders for scraping surplus cement from the sides of the brushes and spreading it on the periphery thereof.

In testimony whereof, I have hereunto set my hand, in the presence of two subscribing .witnesse-s, this the 26th day of May A. D.

LORENZ MUTHER.

Witnesses:

R. P. ELLIOTT, H. M. KELso.

5 each, by addressing the "Commissioner of Patents,

Washington, D. G." 

